A device and method for repairing battery envelope bubble defects

Abstract

The embodiments of the present invention relate to the field of battery technology, and disclose a device and method for repairing bubbles in a battery envelope. The repair device includes: an envelope bubble positioning mechanism for positioning bubbles in the battery envelope; an envelope bubble puncturing and flattening mechanism for puncturing, venting, and flattening the located bubbles; a repair film pasting mechanism for pasting the repair film to the bubble flattening position of the battery; a battery transfer mechanism for clamping and fixing the battery to be repaired, and moving it to a workstation that requires processing; and a driving mechanism, wherein a rotatable turntable is provided at the output end, and the envelope bubble positioning mechanism and the envelope bubble puncturing and flattening mechanism are arranged along the turntable. The repair device provided by the present invention realizes an integrated process of positioning, puncturing, venting, flattening, and repairing bubbles in the battery to be repaired, thereby improving the consistency and efficiency of battery envelope bubble repair and avoiding the existence of hidden dangers of defects caused by manual repair.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of battery technology, and particularly to a device and method for repairing battery envelope bubble defects. Background Art

[0002] The blue film is a blue protective film wrapped on the surface of the battery during the battery preparation process.

[0003] During battery film encapsulation, fluctuations in battery swelling, film material variability, and equipment stability can cause bubbles to form between the film and the battery. These bubbles can easily damage the film, leading to damage and potential safety hazards after the battery module is assembled. Therefore, there are requirements for the size and number of bubbles during battery film encapsulation.

[0004] For products that do not exceed the upper limit of the envelope bubble standard, the blue film can be repaired by manually puncturing the bubbles. This involves manually puncturing the bubbles to release air, then applying a repair film to the blue film surface to cover the punctured and released bubbles. However, manual puncturing of the bubbles to release air can lead to unevenness and wrinkles on the blue film surface, affecting the quality of the subsequent blue film repair. Furthermore, manually applying the repair film can lead to problems such as dirt and wrinkles on the repair film, which also affect the quality of the blue film repair. Summary of the Invention

[0005] In view of the above problems, an embodiment of the present invention provides a method and device for repairing battery membrane bubbles, which is used to solve the battery membrane bubble problem in the prior art. The method of manually puncturing the bubbles to exhaust the air causes problems such as uneven blue film surface and wrinkles. The method of manually pasting the repair film causes problems such as dirt and wrinkles on the repair film.

[0006] According to one aspect of an embodiment of the present invention, a device for repairing battery membrane bubbles is provided, comprising:

[0007] The membrane bubble positioning mechanism is used to position the bubbles in the battery membrane;

[0008] The envelope bubble puncture and flattening mechanism is used to puncture, exhaust and flatten the located bubbles;

[0009] A repair film pasting mechanism, used to paste the repair film to the bubble flattening position of the battery;

[0010] A battery transfer mechanism, used to clamp and fix the battery to be repaired, and move the battery to be repaired to the location of the envelope bubble positioning mechanism, the envelope bubble puncturing and flattening mechanism, or the repair film pasting mechanism; and

[0011] A driving mechanism, wherein a turntable is provided at the output end of the driving mechanism, and the driving mechanism is used to drive the turntable to rotate along the circumference of the turntable, and the envelope bubble positioning mechanism and the envelope bubble puncturing and flattening mechanism are arranged at intervals along the circumference of the turntable.

[0012] In some optional implementations, the envelope bubble puncturing and flattening mechanism includes:

[0013] A shell having a cavity, wherein a bubble docking port is formed at a first end of the shell along a first direction, and the bubble docking port is communicated with the cavity;

[0014] a puncture needle disposed in the cavity and connected to the housing, wherein a needle tip is provided at a first end of the puncture needle along the first direction, and the needle tip is disposed close to the bubble docking port;

[0015] a flattening rod disposed in the cavity, wherein a flattening surface is provided at a first end of the flattening rod along the first direction; and

[0016] A driving member is arranged on the shell, and the driving end of the driving member is connected to the flattening rod to drive the flattening rod to move along the first direction, so that the flattening plane moves along the first direction to the side of the needle tip away from the bubble docking interface, or moves the flattening plane along the first direction to the bubble docking interface.

[0017] In some optional implementations, the second end of the shell along the first direction is sealed to the side wall of the shell, and the side wall of the shell is provided with a joint, one end of the joint is connected to the cavity, and the other end of the joint is used to connect to the vacuum mechanism.

[0018] In some optional implementations, the battery transfer mechanism is arranged below the envelope bubble positioning mechanism, the envelope bubble puncturing and flattening mechanism, and the repair film pasting mechanism; the battery transfer mechanism is also used to move the battery to be repaired after it is repaired, so as to take out the repaired battery.

[0019] In some optional implementations, the battery transfer mechanism includes a positioning fixture and a transfer mechanism, the positioning fixture is used to clamp and fix the battery to be repaired, and the positioning fixture is movably mounted on the transfer mechanism to move the battery to be repaired to the bottom of the envelope bubble positioning mechanism, the envelope bubble puncture and flattening mechanism or the repair film pasting mechanism through the transfer mechanism.

[0020] In some optional implementations, a photographing mechanism is further included, which is used to take and save photographs of batteries to be repaired and batteries that have been repaired.

[0021] In some optional implementations, the envelope bubble positioning mechanism, the photographing mechanism, and the envelope bubble puncturing and flattening mechanism are arranged at intervals along the circumference of the turntable.

[0022] In some optional implementations, a code scanning mechanism is further included, which is used to scan the code of the battery to be repaired to bind the battery to be repaired.

[0023] In some optional implementations, the envelope bubble positioning mechanism adopts a laser contour positioning mechanism, and the laser contour positioning mechanism performs positioning by aligning the bubble with a laser aperture of the laser contour positioning mechanism.

[0024] According to one aspect of an embodiment of the present invention, a method for repairing battery membrane bubbles is provided, wherein a battery to be repaired is repaired using the above-mentioned battery membrane bubble repair device; the repair method comprises:

[0025] Locate the bubbles in the battery envelope;

[0026] Puncture and flatten the located bubbles;

[0027] Stick the repair film to the battery where the bubbles are flattened.

[0028] In some optional implementations, the located bubbles are punctured, exhausted, and flattened, specifically including:

[0029] A sealing abutment is performed around the located bubble to form a sealed cavity;

[0030] Evacuating the sealed cavity and puncturing the bubbles to exhaust the air;

[0031] Maintaining the sealed cavity under vacuum pressure and removing the gas in the bubble;

[0032] The bubbles are flattened.

[0033] Compared with the prior art, the present invention has the following advantages:

[0034] The device and method for repairing battery membrane bubbles provided by the present invention realize an integrated process of locating, puncturing, venting, flattening, and repairing bubbles in the battery to be repaired, thereby improving the consistency and efficiency of battery membrane bubble repair and avoiding the hidden dangers of defects caused by manual repair.

[0035] The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to more clearly understand the technical means of the embodiments of the present invention, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the drawings. In the drawings:

[0037] Figure 1 A schematic structural diagram of a device for repairing battery membrane bubbles provided by an embodiment of the present invention is shown;

[0038] Figure 2 A schematic structural diagram of a membrane bubble puncturing and flattening mechanism of a battery membrane bubble repair device provided by an embodiment of the present invention is shown.

[0039] Figure 3 A schematic diagram showing the use of a bubble puncturing and flattening mechanism of a battery bubble repair device provided by an embodiment of the present invention.

[0040] Figure 4 An exploded view of a battery membrane bubble puncturing and flattening mechanism of a battery membrane bubble repair device provided by an embodiment of the present invention is shown.

[0041] Figure 5 A schematic structural diagram of a flattening rod of a battery membrane bubble puncturing and flattening mechanism of a battery membrane bubble repair device provided by an embodiment of the present invention is shown.

[0042] Figure 6 A schematic structural diagram of a membrane puncture needle of a membrane bubble puncturing and flattening mechanism of a battery membrane bubble repair device provided by an embodiment of the present invention is shown.

[0043] Figure 7 A schematic structural diagram of a repair film pasting mechanism of a battery membrane bubble repair device provided by an embodiment of the present invention is shown.

[0044] Figure 8 A schematic structural diagram of a roll of a repair film pasting mechanism of a repair device for repairing battery film bubbles provided by an embodiment of the present invention is shown.

[0045] Figure 9 A schematic structural diagram of a battery transfer mechanism of a device for repairing battery membrane bubbles provided by an embodiment of the present invention is shown.

[0046] Figure 10 A schematic diagram showing a process of a method for repairing battery membrane bubble defects provided by an embodiment of the present invention;

[0047] Figure 11A schematic diagram of the process of puncturing, exhausting and flattening located bubbles in a method for repairing bubble defects in a battery membrane provided by an embodiment of the present invention is shown.

[0048] Markings in the figure:

[0049] 10. Membrane bubble puncture and flattening mechanism;

[0050] 11. Shell; 111. Bubble docking port; 112. Through hole; 113. Limiting platform;

[0051] 12. Acupuncture needle; 121. Needle tip;

[0052] 13. Flattening rod; 131. Flattening surface; 132. Through hole; 133. Avoidance groove; 134. Protrusion;

[0053] 14. Driving member; 141. Piston;

[0054] 15. Connecting rod; 151. Connecting hole;

[0055] 16. Connector;

[0056] 17. Seals;

[0057] 18. Bearing parts;

[0058] 20. Envelope bubble positioning mechanism;

[0059] 30. Repair film pasting mechanism;

[0060] 310, mounting frame; 320, unwinding tray; 330, feeding roller; 340, retrieving platform; 350, traction mechanism; 360, rewinding mechanism; 370, buffer mechanism; 380, gluing cylinder; 390, retrieving cylinder;

[0061] 311. Vacuum suction cup; 312. Translation mechanism; 313. Connecting plate; 314. Slide rail assembly;

[0062] 40. Battery transfer mechanism;

[0063] 410, positioning fixture; 411, fixture body; 412, rotating cylinder;

[0064] 420, transfer mechanism; 421, first transfer assembly; 422, first sliding assembly; 423, second transfer assembly; 424, second sliding assembly;

[0065] 50. Photography agency;

[0066] 60. Driving mechanism;

[0067] 70. Turntable;

[0068] 100, battery; 101, blue film; 102, air bubble;

[0069] 200, coil; 201, repair film;

[0070] 300. Install the platform. DETAILED DESCRIPTION

[0071] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0072] In order to solve the problem of battery membrane bubbles in the prior art, this embodiment adopts manual puncture of bubbles to exhaust air, which results in uneven blue film surface and wrinkles. Manual pasting of repair film also results in dirtiness and wrinkles on the repair film. A device for repairing poor battery membrane bubbles is provided.

[0073] Figure 1 A schematic structural diagram of a battery membrane bubble repair device provided by this embodiment is shown.

[0074] The repair device for the battery envelope bubble defect is as follows Figure 1 As shown, it includes: a membrane bubble positioning mechanism 20, a membrane bubble puncture and flattening mechanism 10, a repair film pasting mechanism 30, a battery transfer mechanism 40 and a driving mechanism 60. The membrane bubble positioning mechanism 20, the membrane bubble puncture and flattening mechanism 10, the repair film pasting mechanism 30 and the battery transfer mechanism 40 are arranged at intervals.

[0075] Preferably, the battery transfer mechanism 40 is arranged below the envelope bubble positioning mechanism 20, the envelope bubble puncturing and flattening mechanism 10 and the repair film pasting mechanism 30; the battery transfer mechanism 40 is also used to move away after the battery 100 to be repaired is repaired, so as to take out the repaired battery 100.

[0076] The envelope bubble positioning mechanism 20 is used to position the bubbles in the battery envelope; the envelope bubble puncture and flattening mechanism 10 is used to puncture, exhaust and flatten the located bubbles; the repair film pasting mechanism 30 is used to paste the repair film to the bubble flattening position of the battery; the battery transfer mechanism 40 is used to clamp and fix the battery 100 to be repaired, and move the battery 100 to be repaired to the location of the envelope bubble positioning mechanism 20, the envelope bubble puncture and flattening mechanism 10 or the repair film pasting mechanism 30; the output end of the driving mechanism 60 is provided with a turntable 70, and the driving mechanism 60 is used to drive the turntable 70 to rotate along the circumference of the turntable 70, and the envelope bubble positioning mechanism 20 and the envelope bubble puncture and flattening mechanism 10 are arranged at intervals along the circumference of the turntable 70.

[0077] When the battery membrane bubble repair device of this embodiment repairs the membrane bubbles of the battery to be repaired, the battery 100 to be repaired is first clamped and fixed by the battery transfer mechanism 40, and the battery 100 to be repaired is moved to the location of the membrane bubble positioning mechanism 20 or the membrane bubble puncture and flattening mechanism 10, and the driving mechanism 60 drives the turntable 70 to rotate along the circumference of the turntable 70, so that the membrane bubble positioning mechanism 20 corresponds to the battery 100 to be repaired and positions the bubbles 102 on the blue film 101 on the surface of the battery 100, and then drives the turntable 70 to rotate along the circumference of the turntable 70 again, so that the membrane bubble puncture and flattening mechanism 10 corresponds to the battery 100 to be repaired and punctures, exhausts and flattens the positioned bubbles 102, finally, the battery 100 to be repaired is moved to the location of the repair film pasting mechanism 30 by the battery transfer mechanism 40, and the repair film is pasted to the bubble flattening position of the battery by the repair film pasting mechanism 30.

[0078] Therefore, the battery membrane bubble repair device disclosed in this embodiment, through the membrane bubble positioning mechanism 20, the membrane bubble puncturing and flattening mechanism 10 and the repair film pasting mechanism 30, cooperates with the battery transfer mechanism 40 and the driving mechanism 60, to sequentially complete the positioning of the bubbles in the battery membrane, puncture, exhaust and flatten the located bubbles, and paste the repair film to the bubble flattening position of the battery, thereby realizing an integrated repair process, improving the consistency and efficiency of the membrane bubble repair of the battery 100, and avoiding the existence of hidden dangers of defects caused by manual repair.

[0079] As a preferred embodiment, this embodiment optimizes the structure of the envelope bubble puncturing and flattening mechanism 10.

[0080] like Figure 2-Figure 6 As shown, the membrane bubble puncturing and flattening mechanism 10 includes: a housing 11 , a membrane puncturing needle 12 , a flattening rod 13 and a driving member 14 .

[0081] The housing 11 has a cavity, and a bubble docking port 111 is formed at a first end of the housing 11 along a first direction, and the bubble docking port 111 is connected to the cavity;

[0082] The membrane puncture needle 12 is disposed in the cavity and connected to the housing 11. A needle tip 121 is provided at a first end of the membrane puncture needle 12 along a first direction. The needle tip 121 is disposed close to the bubble docking port 111.

[0083] The flattening rod 13 is disposed in the cavity, and a flattening surface 131 is provided at a first end of the flattening rod 13 along a first direction;

[0084] The driving member 14 is arranged on the shell 11, and the driving end of the driving member 14 is connected to the flattening rod 13 to drive the flattening rod 13 to move along the first direction, so that the flattening plane 131 moves along the first direction to the side of the needle tip 121 away from the bubble docking port 111, or moves the flattening plane 131 along the first direction to the bubble docking port 111.

[0085] The working process of the envelope bubble puncturing and flattening mechanism 10 is as follows: the bubble docking interface of the shell 11 abuts against the blue film 101 on the surface of the battery 100, so that the bubble 102 on the blue film 101 enters the bubble docking interface 111. Before this, the flattening rod 13 can be driven by the driving member 14 to move in the first direction, so that the pressing plane 131 moves along the first direction to the side of the needle tip 121 away from the bubble docking interface 111. At this time, the needle tip 121 protrudes from the pressing plane 131 of the flattening rod 13. After the bubble 102 enters the bubble docking interface 111, it can be punctured by the needle tip 121 to complete the exhaust; then the driving member 14 drives the flattening rod 13 to move in the first direction, so that the pressing plane 131 moves along the first direction to the bubble docking interface 111. At this time, the pressing plane 131 abuts against the bubble 102 that has completed the puncture and exhaust, so as to flatten the bubble 102 that has completed the puncture and exhaust, thereby achieving good fitting of the blue film and the battery 100.

[0086] Therefore, the membrane bubble puncturing and flattening mechanism 10, by providing a shell 11 with a cavity, a membrane puncturing needle 12, a flattening rod 13 and a driving part 14, can realize an integrated process of puncturing, venting and flattening the bubbles 102 on the blue film 101 on the surface of the battery 100, thereby improving the consistency and efficiency of the bubble puncturing, venting and flattening treatment of the battery membrane bubbles during the repair process, ensuring the quality of the bubble repair, avoiding the existence of hidden dangers of adverse defects caused by manual repair, and thus solving the problems of manual bubble puncture and exhaust, uneven blue film surface, wrinkles, and affecting the subsequent blue film repair quality.

[0087] In some optional embodiments, the matching structure between the membrane puncture needle 12 and the flattening rod 13 is optimized.

[0088] Specifically: a through hole 132 is opened on the pressing plane 131, and the through hole 132 is set along the first direction. The puncture needle 12 is inserted into the through hole 132, and the second end of the puncture needle 12 along the first direction is connected to the shell 11. The flattening rod 13 can move relative to the puncture needle 12 along the first direction through the through hole 132, so that the pressing plane 131 moves along the first direction to the side of the needle tip 121 away from the bubble docking port 111. At this time, the needle tip 121 protrudes from the pressing plane 131, or the pressing plane 131 moves along the first direction to the bubble docking port 111. At this time, the needle tip 121 retracts into the through hole 132, so that the pressing plane 131 abuts against the bubble 102 that has completed puncture and exhaust.

[0089] A relief groove 133 is defined on the sidewall of the flattening rod 13 along the first direction, communicating with the through-hole 132. A connecting rod 15 is defined on the second end of the membrane puncture needle 12 along the first direction. At least one end of the connecting rod 15 extends toward the sidewall of the housing 11 and passes through the relief groove 133 to connect with the sidewall of the housing 11. The flattening rod 13 can move relative to the connecting rod 15 in the first direction via the relief groove 133. By providing the connecting rod 15 at the second end of the membrane puncture needle 12 along the first direction and connecting the connecting rod 15 to the sidewall of the housing 11, the position of the membrane puncture needle 12 and its needle tip 121 remains stable, thereby ensuring that the air bubble 102 can be punctured and exhausted. By defining the relief groove 133 on the sidewall of the flattening rod 13 along the first direction, the relief groove 133 allows the connecting rod 15 to be avoided, allowing the flattening rod 13 to move relative to the connecting rod 15 in the first direction via the relief groove 133.

[0090] In this preferred embodiment, the avoidance groove 133 is a through groove extending radially through the flattening rod 13. Opposite ends of the connecting rod 15 extend toward opposite side walls of the housing 11 and pass through the through groove to connect with the opposite side walls of the housing 11. By connecting the opposite ends of the connecting rod 15 to the opposite side walls of the housing 11, the position of the membrane puncture needle 12 and its needle tip 121 is more stably maintained, thereby ensuring that the air bubble 102 can be punctured and exhausted more effectively.

[0091] In this embodiment, given that the flattening rod 13 can move relative to the connecting rod 15 along the first direction through the avoidance groove 133, it can also be understood that the flattening rod 13 can move relative to the puncture needle 12 along the first direction through the avoidance groove 133; and when the flattening rod 13 moves relative to the puncture needle 12 along the first direction, the pressing surface 131 moves along the first direction to the side of the needle tip 121 away from the bubble docking port 111, or the pressing surface 131 moves along the first direction to the bubble docking port 111. Therefore, the length of the puncture needle 12 along the first direction must be greater than the length of the avoidance groove 133 along the first direction, so that the design of the pressing surface 131 moving along the first direction to the side of the needle tip 121 away from the bubble docking port 111, or the pressing surface 131 moving along the first direction to the bubble docking port 111 can be realized.

[0092] This preferred embodiment, because the length of the needle 12 along the first direction is greater than the length of the avoidance groove 133 along the first direction, makes it difficult for the needle 12 to be installed in the through-hole 132 through the avoidance groove 133. To facilitate installation of the needle 12 in the through-hole 132, the second end of the needle 12 along the first direction is detachably connected to the middle portion of the connecting rod 15. During installation, the connecting rod 15 can be first inserted into the avoidance groove 133, and then the second end of the needle 12 along the first direction is inserted into the through-hole 132 and detachably connected to the middle portion of the connecting rod 15.

[0093] Preferably, the second end of the puncture needle 12 along the first direction is threadedly connected to the middle part of the connecting rod 15. After the second end of the puncture needle 12 along the first direction is inserted into the through hole 132, the second end of the puncture needle 12 along the first direction can be conveniently connected to the middle part of the connecting rod 15 by rotating the puncture needle 12.

[0094] In some optional embodiments, the matching structure between the puncture needle 12 and the housing 11 is optimized.

[0095] Specifically, at least one end of the connecting rod 15 defines a connecting hole 151, and a through-hole 112 is defined in the side wall of the housing 11. A fastener passes through through-hole 112 and engages with the connecting hole 151. This detachable connection, in which the fastener passes through through-hole 112 and engages with the connecting hole 151, allows for convenient connection of the connecting rod 15 to the side wall of the housing 11. During installation, the connecting rod 15 can be placed into the cavity of the housing 11, aligning the connecting hole 151 with the through-hole 112. The fastener can then be passed through through-hole 112 and engaged with the connecting hole 151. Preferably, the fastener is threadedly connected to the connecting hole 151.

[0096] Preferably, connecting holes 151 are opened at opposite ends of the connecting rod 15, and through holes 112 are opened on opposite side walls of the shell 11. The opposite ends of the connecting rod 15 are fixedly connected to the shell 11 by fasteners passing through the through holes 112 and the connecting holes 151.

[0097] In some optional embodiments, the structure of the housing 11 is optimized.

[0098] Specifically, a seal 17 is provided at the first end of the housing 11 along the first direction. The seal 17 is disposed outside the bubble docking port 111 along the circumference of the housing 11. The second end of the housing 11 along the first direction is sealedly connected to the side wall of the housing 11. The side wall of the housing 11 is provided with a connector 16. One end of the connector 16 communicates with the cavity, and the other end of the connector 16 is used to communicate with the vacuum mechanism. It is understood that the second end of the housing 11 along the first direction may be provided with a top wall, the top wall of the housing 11 being sealedly connected to the side wall of the housing 11, and the driver 14 being disposed on the top wall of the housing 11. Alternatively, the driver 14 may be directly disposed at the second end of the housing 11 along the first direction, the driver 14 being sealedly connected to the side wall of the housing 11.

[0099] Preferably, the sealing member 17 is a sealing ring, which is arranged on the outside of the bubble docking port 111 and may also extend to the inner wall of the bubble docking port 111 .

[0100] When the bubble docking port 111 is sealed against the blue film 101 on the surface of the battery 100 through the seal 17, the bubble 102 on the blue film 101 enters the bubble docking port 111, and the cavity of the shell 11 forms a sealed cavity. Then the vacuum mechanism evacuates the sealed cavity through the connector 16, causing the bubble 102 to swell and approach the needle tip 121 until it is punctured by the needle tip 121, thereby completing the exhaust. By evacuating the sealed cavity and maintaining the vacuum pressure for a certain period of time, the air between the blue film and the surface of the battery 100 can be better discharged, thereby improving the flattening effect, making the blue film closer to the surface of the battery 100, and avoiding wrinkles after the blue film is flattened.

[0101] At the same time, since the needle tip 121 is arranged close to the bubble docking port 111, the needle tip 121 can puncture the bubble 102 in time, thereby ensuring that the deformation of the blue film is controlled when the bubble 102 expands, so as to avoid excessive plastic deformation and wrinkles after the blue film is flattened.

[0102] In some optional embodiments, the matching structure between the flattening rod 13 , the housing 11 and the driving member 14 is optimized.

[0103] Specifically, the flattening rod 13 ensures stability of movement along the first direction in the cavity of the housing 11 through the bearing member 18 .

[0104] For example, the bearing member 18 is disposed in the cavity, and the flattening rod 13 passes through the bearing member 18 . The bearing member 18 can position and guide the flattening rod 13 to ensure the stability and accuracy of the flattening rod 13 moving in the first direction.

[0105] Preferably, a limiting platform 113 is extended from the side wall of the housing 11 into the cavity, and the bearing 18 abuts against the limiting platform 113 to limit the bearing 18 .

[0106] In this embodiment, which is a preferred embodiment, the bearing member 18 adopts a linear bearing to achieve positioning and guiding when the flattening rod 13 moves along the first direction.

[0107] In this embodiment as a preferred embodiment, the driving member 14 adopts a cylinder, which is arranged at the second end of the shell 11 along the first direction, and the piston 141 of the cylinder is connected to the second end of the flattening rod 13 along the first direction to drive the flattening rod 13.

[0108] Specifically, a threaded hole is formed at the bottom of the piston 141, and a protrusion 134 is formed at the second end of the flattening rod 13 along the first direction. The protrusion 134 is threadedly connected to the threaded hole. This allows the flattening rod 13 and the piston 141 to be easily assembled and disassembled by rotating the flattening rod 13.

[0109] As a preferred embodiment, this embodiment optimizes the structure of the envelope bubble positioning mechanism 20.

[0110] In this embodiment, the envelope bubble positioning mechanism 20 adopts a laser contour positioning mechanism, which performs positioning by aligning the bubble with the laser aperture of the laser contour positioning mechanism.

[0111] This embodiment is a preferred embodiment. The envelope bubble positioning mechanism 20 can adopt a laser tracker, a laser locator, a laser measuring instrument or a laser profile measuring instrument, etc., as long as it can determine the position, specific coordinates and / or bubble profile of the bubble. Whether it is a laser tracker, a laser locator, a laser measuring instrument or a laser profile measuring instrument, they are all existing technologies and will not be elaborated on in this embodiment.

[0112] As a preferred embodiment, this embodiment optimizes the structure of the repair film pasting mechanism 30 .

[0113] In this embodiment, if Figure 7 As shown, the repair film pasting mechanism 30 includes: a mounting frame 310, a unwinding material tray 320, a material feed roller 330, a material picking platform 340, a traction mechanism 350, a winding mechanism 360, a cache mechanism 370 and a material picking and pasting mechanism arranged on the mounting frame 310, and the material picking and pasting mechanism is located above the material picking platform 340.

[0114] In this embodiment, if Figure 8 As shown, the repair film 201 is a roll material 200, and the repair film 201 is circular, and multiple repair films 201 are pasted on the roll material 200 at intervals; the unloading process of the repair film 201 is: the roll material 200 unwound from the unwinding material tray 320 passes through the material feed roller 330 to the material taking platform 340, and the material taking and pasting work of the repair film 201 is completed by the material taking and pasting mechanism, and then it is pulled by the traction mechanism 350 and passes through the cache mechanism 370, and finally rolled up onto the winding mechanism 360.

[0115] The material picking and pasting mechanism includes a translation mechanism 312 arranged on the mounting frame 310, a connecting plate 313 connected to the translation mechanism 312, a vacuum suction cup 311 movably mounted on the connecting plate 313 in the vertical direction, a gluing cylinder 380 mounted on the connecting plate 313 and connectable to the vacuum suction cup 311 in the vertical direction, and a material picking cylinder 390 mounted on the connecting plate 313 and abutting against the vacuum suction cup 311 in the vertical direction.

[0116] When material is needed, the translation mechanism 312 drives the connecting plate 313 to move the gluing cylinder 380, vacuum suction cup 311, and material removal cylinder 390 to the top of the material removal platform 340. The material removal cylinder 390 extends to drive the vacuum suction cup 311 to pick up the repair film 201 on the roll 200 on the material removal platform 340. After the material removal cylinder 390 extends into position and the vacuum suction cup 311 activates the vacuum, the material is removed. The translation mechanism 312 and the traction mechanism 350 act simultaneously to remove the repair film 201 from the roll 200. After the material is removed, the translation mechanism 312 drives the connecting plate 313 to drive the vacuum suction cup 311 to move to the designated position, that is, the location of the battery 100 to be repaired. The gluing cylinder 380 extends to drive the vacuum suction cup 311 to stick the repair film 201 to the blue film surface of the battery 100 and cover the punctured and exhausted bubbles 102, completing the repair operation.

[0117] The translation mechanism 312 includes a motor, a set of transmission wheels connected to the motor, and a transmission belt wound around the set of transmission wheels. The transmission belt is connected to the connecting plate 313 to drive the connecting plate 313 to perform reciprocating motion.

[0118] Furthermore, when the translation mechanism 312 drives the connecting plate 313 to move, it must cooperate with the slide rail assembly 314 to stabilize the movement path of the connecting plate 313. Specifically, it can be understood that the connecting plate 313 is also connected to the mounting frame 310 via the slide rail assembly 314. The slide rail assembly 314 is arranged parallel to the translation mechanism 312, and the connecting plate 313 moves relative to the mounting frame 310 along the slide rail assembly 314 under the drive of the translation mechanism 312.

[0119] As a preferred embodiment, this embodiment optimizes the specific structure of the battery transfer mechanism 40.

[0120] like Figure 9 As shown, the battery transfer mechanism 40 includes: a positioning fixture 410 and a transfer mechanism 420. The positioning fixture 410 is used to clamp and fix the battery 100 to be repaired. The positioning fixture 410 is movably installed on the transfer mechanism 420 to move the battery 100 to be repaired to the bottom of the envelope bubble positioning mechanism 20, the envelope bubble puncture and flattening mechanism 10 or the repair film pasting mechanism 30 through the transfer mechanism 420.

[0121] The transfer mechanism 420 includes a first transfer assembly 421 and a second transfer assembly 423, which are arranged to intersect perpendicularly. The first transfer assembly 421 is fixedly mounted on the mounting platform 300, and the second transfer assembly 423 is slidably mounted on the first transfer assembly 421 via a first sliding assembly 422 to slide along the first transfer assembly 421 in the X direction. The positioning fixture 410 is slidably mounted on the second transfer assembly 423 via a second sliding assembly 424 to slide along the second transfer assembly 423 in the Y direction. The battery 100 to be repaired is placed on the positioning fixture 410 and clamped by the positioning fixture 410. The positioning fixture 410 slides along the second transfer assembly 423 in the Y direction via the second sliding assembly 424, and the second transfer assembly 423 slides along the first transfer assembly 421 in the X direction via the first sliding assembly 422, thereby adjusting the position of the positioning fixture 410 in the X and Y directions.

[0122] The positioning fixture 410 includes a fixture body 411 and a rotating cylinder 412, wherein the fixture body 411 can limit the first group of relative side walls of the battery 100 to be repaired, and the rotating cylinder 412 is arranged at the opposite ends of the fixture body 411 and located at the second group of relative side walls of the battery 100, and the output end of the rotating cylinder 412 is connected to a positioning piece.

[0123] The working process of the battery transfer mechanism 40 is as follows: after the battery 100 to be repaired is placed in the fixture body 411, the rotating cylinder 412 drives the positioning part to rotate to the top of the battery 100 to be repaired, so as to clamp and fix the battery 100 to be repaired, and then the battery 100 to be repaired is moved to the bottom of the envelope bubble positioning mechanism 20, the envelope bubble puncture and flattening mechanism 10 or the repair film pasting mechanism 30 through the transfer mechanism 420. After the repair is completed, the transfer mechanism 420 removes the repaired battery 100, and the rotating cylinder 412 drives the positioning part to move away, thereby taking out the repaired battery 100.

[0124] In some optional embodiments, the second transfer assembly 423 and the positioning fixture 410 can be manually shifted, or a driving cylinder can be provided to achieve automatic shifting.

[0125] The first sliding component 422 and the second sliding component 424 are configured as slide rails and sliders, and the movement process of the second transfer component 423 along the first transfer component 421 through the first sliding component 422 and the movement process of the positioning fixture 410 along the second transfer component 423 through the second sliding component 424 can be controlled by driving the cylinder.

[0126] In this preferred embodiment, the battery membrane bubble repair device further includes a photographing mechanism 50 for taking and storing photographs of both the battery under repair and the repaired battery. By taking photographs of both the battery under repair and the repaired battery, and retaining the before-and-after photos, the quality and location of the membrane bubble repair in the battery 100 can be traced.

[0127] In this embodiment, the envelope bubble positioning mechanism 20 , the photographing mechanism 50 and the envelope bubble puncturing and flattening mechanism 10 are arranged at intervals along the circumference of the turntable 70 .

[0128] The repair film pasting mechanism 30 is arranged on one side of the driving mechanism 60, and the battery transfer mechanism 40 is arranged below the envelope bubble positioning mechanism 20, the photographing mechanism 50, the envelope bubble puncturing and flattening mechanism 10 and the repair film pasting mechanism 30.

[0129] Preferably, the driving mechanism 60 adopts a four-axis manipulator, which can also drive the turntable 70 to move axially or radially, thereby facilitating the envelope bubble puncture and flattening mechanism 10 to seal and abut around the positioned bubble and form a sealed cavity.

[0130] In addition, the battery envelope bubble repair device also includes a code scanning mechanism for scanning the QR code of the battery 100 to be repaired and binding it to the battery 100 to be repaired. The code scanning mechanism scans the QR code of the battery 100 to be repaired and binds the QR code of the battery 100 to photos before and after the repair, thereby improving traceability.

[0131] The working process of the battery envelope bubble repair device of this embodiment is as follows: the battery 100 to be repaired is clamped and fixed by the battery transfer mechanism 40, the battery 100 to be repaired is scanned by the code scanning mechanism to bind the battery 100 to be repaired, the battery transfer mechanism 40 moves the battery 100 to be repaired to the bottom of the envelope bubble positioning mechanism 20, the photographing mechanism 50 and the envelope bubble puncturing and flattening mechanism 10, the driving mechanism 60 drives the turntable 70 to rotate, first the photographing mechanism 50 takes a picture of the battery 100 to be repaired and saves it, and then the bubble 102 of the battery envelope is flattened by the envelope bubble positioning mechanism 20. Positioning is performed, and finally the positioned bubble 102 is punctured, exhausted and flattened by the envelope bubble puncture and flattening mechanism 10, the battery transfer mechanism 40 moves the battery 100 to be repaired to the bottom of the repair film pasting mechanism 30, and the repair film 201 is pasted to the bubble flattening position of the battery 100 through the repair film pasting mechanism 30 to complete the repair of the battery 100 to be repaired, and then, the battery transfer mechanism 40 moves the repaired battery 100 to the bottom of the photographing mechanism 50, and the photographing mechanism 50 takes a photo of the repaired battery 100 and saves it, and finally, the repaired battery 100 is taken out of the battery transfer mechanism 40.

[0132] The battery membrane bubble repair device realizes an integrated repair process, improves the consistency and efficiency of the battery 100 membrane bubble repair, and also realizes the traceability of the quality and repair position of the battery 100 membrane bubble repair, avoiding the existence of hidden defects caused by manual repair.

[0133] In some optional embodiments, a method for repairing battery membrane bubbles is also disclosed. The method uses the battery membrane bubble repair device described in any of the above embodiments to repair the battery to be repaired.

[0134] like Figure 10 As shown, the repair method includes:

[0135] S10. Locate the bubbles in the battery envelope.

[0136] Specifically, this step involves positioning the bubbles in the battery membrane using the membrane bubble positioning mechanism 20 described in the above embodiment.

[0137] In this step, it should be noted that during the coating process of the battery 100, the number of bubbles 102 generated may not only be one but may also be multiple. Therefore, when locating the bubbles 102, only one bubble 102 is located at a time, and then the bubble 102 is repaired, and then other bubbles 102 are located and repaired.

[0138] S20. Puncture and flatten any located air bubbles.

[0139] This step specifically includes: using the envelope bubble puncturing and flattening mechanism 10 described in the above embodiment to puncture, exhaust and flatten the located bubbles.

[0140] S30. Stick the repair film to the area where the bubble is flattened on the battery.

[0141] This step specifically includes: using the repair film sticking mechanism 30 described in the above embodiment to stick the repair film to the bubble flattening position of the battery.

[0142] In this embodiment, the specific structures of the envelope bubble positioning mechanism 20, the envelope bubble puncturing and flattening mechanism 10, and the repair film pasting mechanism 30 are as described in the above embodiments, and their specific structures will not be repeated here.

[0143] This embodiment is a preferred embodiment, in which the located bubbles are punctured, exhausted and flattened, and specifically includes the following steps:

[0144] S201. A sealed abutment is performed around the located bubble to form a sealed cavity.

[0145] S202. The sealed cavity is evacuated and the bubbles are punctured to exhaust the air.

[0146] S203. Maintaining the sealed cavity under vacuum pressure and extracting the gas in the bubble.

[0147] S204. Flatten the bubbles.

[0148] Through this step, an integrated process of positioning, puncturing, vacuum exhausting, flattening, and repairing the bubbles 102 on the blue film 101 on the surface of the battery 100 can be achieved, thereby improving the consistency and efficiency of the bubble puncture, exhausting, and flattening treatment of the battery membrane bubbles during the repair process, ensuring the quality of the bubble repair, avoiding the existence of hidden dangers of adverse defects caused by manual repair, and thus solving the problems of incomplete exhaust due to manual bubble puncture, uneven blue film surface, wrinkles, and affecting the subsequent blue film repair quality.

[0149] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the present invention may be practiced without these specific details. Similarly, in order to streamline the present invention and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0150] Those skilled in the art will appreciate that the modules in the devices of the embodiments can be adaptively changed and installed in one or more devices different from the embodiments. The modules, units, or components in the embodiments can be combined into one module, unit, or component, and furthermore, they can be divided into multiple submodules, subunits, or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive.

Claims

1. A device for repairing battery film bubble defects, wherein the battery film bubble defects refer to bubbles generated between the blue film and the surface of the battery, characterized in that: include: An envelope bubble positioning mechanism (20) for positioning bubbles in the battery envelope; A membrane bubble puncturing and flattening mechanism (10) comprises a membrane puncturing needle (12), a flattening rod (13) and a driving member (14), wherein the membrane puncturing needle (12) is provided with a needle tip (121) at a first end along a first direction, and the flattening rod (13) is provided with a flat surface (131) at a first end along the first direction, and the driving end of the driving member (14) is connected to the flattening rod (13) to drive the flattening rod (13) to move along the first direction, so that the needle tip (121) protrudes from the flat surface (131) of the flattening rod (13), and is used to puncture and exhaust the positioned bubble, or to make the flat surface (131) abut against the bubble that has been punctured and exhausted, so as to flatten the bubble that has been punctured and exhausted, thereby achieving the bonding of the blue film (101) and the battery (100); A repair film pasting mechanism (30) is used to paste the repair film onto the bubble flattening position of the battery (100); A battery transfer mechanism (40) is used to clamp and fix the battery (100) to be repaired, and to move the battery (100) to be repaired to the location of the envelope bubble positioning mechanism (20), the envelope bubble puncturing and flattening mechanism (10), or the repair film pasting mechanism (30); and A driving mechanism (60) is provided at an output end of the driving mechanism (60), wherein a rotating disk (70) is provided, and the driving mechanism (60) is used to drive the rotating disk (70) to rotate along the circumference of the rotating disk (70), and the envelope bubble positioning mechanism (20) and the envelope bubble puncturing and flattening mechanism (10) are arranged at intervals along the circumference of the rotating disk (70).

2. The battery envelope bubble repair device according to claim 1, characterized in that: The envelope bubble puncturing and flattening mechanism (10) further comprises: A shell (11), the shell (11) having a cavity, a bubble docking port (111) being provided at a first end of the shell (11) along the first direction, the bubble docking port (111) being in communication with the cavity; The membrane puncture needle (12) is arranged in the cavity and connected to the housing (11), and the needle tip (121) is arranged close to the bubble docking port (111); The flattening rod (13) is arranged in the cavity, and the driving member (14) is arranged on the housing (11). The driving member (14) is used to drive the flattening rod (13) to move along the first direction, so that the flattening plane (131) moves along the first direction to the side of the needle tip (121) away from the bubble docking port (111), or moves the flattening plane (131) along the first direction to the bubble docking port (111).

3. The battery membrane bubble repair device according to claim 2, characterized in that: The second end of the shell (11) along the first direction is sealedly connected to the side wall of the shell (11), and the side wall of the shell (11) is provided with a joint (16), one end of the joint (16) is in communication with the cavity, and the other end of the joint (16) is used to communicate with a vacuum mechanism.

4. The battery membrane bubble repair device according to claim 1, characterized in that: The battery transfer mechanism (40) is arranged below the envelope bubble positioning mechanism (20), the envelope bubble puncturing and flattening mechanism (10), and the repair film pasting mechanism (30); the battery transfer mechanism (40) is also used to move the battery (100) to be repaired after it is repaired, so as to remove the repaired battery (100).

5. The battery envelope bubble repair device according to claim 4, characterized in that: The battery transfer mechanism (40) includes a positioning fixture (410) and a transfer mechanism (420). The positioning fixture (410) is used to clamp and fix the battery (100) to be repaired. The positioning fixture (410) is movably mounted on the transfer mechanism (420) so as to move the battery (100) to be repaired to the bottom of the envelope bubble positioning mechanism (20), the envelope bubble puncturing and flattening mechanism (10) or the repair film pasting mechanism (30) through the transfer mechanism (420).

6. The battery membrane bubble repair device according to any one of claims 1 to 5, characterized in that: It also includes a photographing mechanism (50), which is used to take photos of batteries to be repaired and batteries that have been repaired, and save them.

7. The battery membrane bubble repair device according to claim 6, characterized in that: The envelope bubble positioning mechanism (20), the photographing mechanism (50), and the envelope bubble puncturing and flattening mechanism (10) are arranged at intervals along the circumference of the turntable (70).

8. The battery envelope bubble repair device according to claim 6, characterized in that: The invention also includes a code scanning mechanism, which is used to scan the code of the battery to be repaired so as to bind the battery to be repaired.

9. The battery membrane bubble repair device according to any one of claims 1 to 5, characterized in that: The envelope bubble positioning mechanism (20) adopts a laser contour positioning mechanism, and the laser contour positioning mechanism performs positioning by aligning the bubble with a laser aperture of the laser contour positioning mechanism.

10. A method for repairing battery envelope bubble defects, characterized in that: The battery to be repaired is repaired by the battery envelope bubble repair device according to any one of claims 1 to 9; the repair method comprises: Locate the bubbles in the battery envelope; Puncture and flatten the located bubbles; Stick the repair film to the battery where the bubbles are flattened.

11. The method for repairing battery envelope bubble defects according to claim 10, characterized in that: Puncture, exhaust and flatten the located bubbles, including: A sealing abutment is performed around the located bubble to form a sealed cavity; Evacuating the sealed cavity and puncturing the bubbles to exhaust the air; Maintaining the sealed cavity under vacuum pressure and removing the gas in the bubble; The bubbles are flattened.

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